1.

For the reaction X_2 Y_4 (l) to 2XY_2(g)at 300 K the values of Delta U and Delta Sare 2 kcal and 20 cal K^(-1)respectively. The value of Delta G for the reaction is

Answer»

-3400 CAL
3400 cal
-2800 cal
2000 cal.

Solution :`Delta H = Delta U + Delta n_g RT`
` Delta H = 2000 + 2 XX 2 xx 300`
`= 3200 cal`
`Delta G = Delta H - T Delta S = 3200 - (300 xx 20) = - 2800 cal`


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